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→Physical Disturbances
=== Physical Disturbances ===
=== Physical Disturbances ===
==== Obstruction ====
==== Obstruction ====
Intestinal obstruction can be the sequel to either mechanical or functional causes. Mechanical obstruction occurs due to physical blockage of the intestinal lumen whereas functional obstruction results from a decrease or inhibition of intestinal motility due to loss of smooth muscle contraction (Brown et. al, 2007).
can be intraluminal, intramural or extrinsinc (expand on these) include talk about strictures?
===== Physical =====
===== Mechanical =====
Physical obstruction of the intestine, either acute or chronic, can occur in all species of animals. Acute obstruction usually involves the upper or middle small intestine whereas chronic obstruction typically occurs in the distal small intestine or large intestine.
====== Enteroliths [picture] ======
====== Enteroliths [picture] ======
====== Foreign Bodies ======
====== Foreign Bodies ======
===== Intussusception =====
===== Intussusception =====
===== Renosplenic entrapment =====
===== Renosplenic entrapment =====
=== Vascular Disturbances ===
=== Vascular Disturbances ===
pathogenesis
pathogenesis